% file: faq.tex

\chapter{Frequently Asked Questions}

\begin{center}
  \begin{tikzpicture}[
    inner sep=0pt,
    minimum size=10mm,
    background rectangle/.style={
      draw=gray!25,
      fill=gray!10,
      rounded corners
    },
    show background rectangle]
  
  %\pgfkeys{/pgf/number format/showpos,precision=2,use period}
  
  \node(o) {\footnotesize Number: $\pgfmathprintnumber{0.012345}$};
    
  \end{tikzpicture}
\end{center}
